<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
  <form action="divide" method="post">
    除&nbsp;&nbsp;&nbsp;数：<input type="text" name="n1"> <br/>
    被除数：<input type="text" name="n2"> <br/>
    <input type="submit" value="计算">
  </form>
</body>
</html>